Rotary machine for manufacturing slide fasteners



I J i 19512 'wmTRlss I ,601,884

v ROTARY MACHINE FOR MANUFACTURING sums FASTENERFS File d A gg, 24, 1946- 1 5 Sheets-Sheetl as J42,

INVENTOR. I r 9 WinTriss 6 ATTORNEYS y 1, 1952 G. WINTRISS' 2,601,884

ROTARY MACHINEFOR MANUFACTURING SLIDE FASTENERS I 'F led Aug. 24, 1946 5 e h et INVENTOR. Gaorgz WinTriss BY ATTORNEYS y 1952 U U G. IVVINTRISSY: 22 0 884 ROTARY MACHINE FOR MANUFACTURING SLIDE FASTENERS FiledAug. 24,1946 ssheeps-sheet s FIEQB 1 as. FIEB so I Z I A20 mmvrm Gzorgz Winlr-iss y I.

v ATTORNEYS I y 1952 G. WiNTRlSS' 2,601,884

ROTARY MACHINE FOR MANUFACTURING SLIDE FASTENERS Filed Aug. 24, 1946 5 Sheets-Sheet 4 1 x Y I! I [2.6

\ Iv i I y 4, L L L v 28 2 [Z4 [Z2 24- 12 P 4 INVENTOR. 5 2. Gzorge WinTrrss FIEB- ATTORNEYS G. WINTRISS July 1, 1952 ROTARY MACHINE FORMANUFACTURING SLIDE FASTENERS 5 Sheets-Sheet '5 Filed Aug. 24, 1946 FIEIT) FIEJG INVENTOR. I Gzorgq, WinTriss Patented July 1 1952 UNITE usures OFF'I'E 2,601,884 ROTARY-MAQ INEFOR MANUFACTUHNG' SLIDE FASTENERS George Whi't'r'iss, Summit, Nil; assignortdoiifi- Y m'ai' Products i'co'r'pbration," NewariifN." J.,' a." corporation 'ofNeW'Uersey ApplicatiomAugust M, 1946';Serial No."692;910

zacianii s." (01. 153-1) This invention relates --to the-manufacture of slide fasteners.

The :primary ;obj ect' of the presentinvention is to" generally im-prove= machines'rfor manufacturin slide-fasteners: 'A more "particular ob- Y jectto providewaismooth; aquiet; high-speedchine =(often 'called a --scoop Imachi-nei) in which all of the mechanical motions-aresimple rotat ingi-motions; all or thevmoving parts being -rotating parts which are driven-at uniform=-speedr To accomplish: the foregoing general objects,

and other more specificobjects which will here'- inafter appear, the present invention -resides-in'- the -:scoop .--machineelements 1 and -theirrelationone to the other, :as are 'hereinafter -more particularly .describedin the' followingispecificatiom The specification is accompanied by drawingsin which Fig. 1 is:an elevation of a-scoop machine--embodying :features ;of the present invention Fig.2 is a section sthrou'gha :partof-the m'a-- chine,-- .taken 'approitimatelyiin tliewplane of;- the 1ine.2-'-2 ofFi'gsrl and"3;'-

Fig. :3 is s a section taken approximately *in' the 1 plane oftth'e line'33 of rig-52; Y

Fig.;4 is a planview of a fragment-pf'one form of scoop-strip or wire. whichilinaylfibe used withthe present invention; Fig. 5is a side elevation 'thereofy- Fig.;6 :is a plan view' showingrsome- -partsof the :machine, particularly; the feed and clamping? mechanisms; with-others parts "omitted;

Fig; .57 is :an elevation: showing-the 'head -of the machine,;looking from the right in Fig. .3

Fig. 8 is a partially sectioned :-plan-=view show ing :the .cutting wheel and icooiiertztiiig die; this view. being taken appro xima. tel -'the planeof the.'1ine8.8 ofFig; 1'1, but-:withthG-SCOOIJs'WiBB" removed I;

Fig. .9 a section throught 'tl'i'e severingwheel," taken approximatelyiinsthe plane of the line 9 -9* ofFig. 3

Fig; 10:is a. fragmentary section drawnto enlarged; scale',- and taken approximatel yzin the Fig. 11 is. a. similar view ashowing the relation ofthe parts as the scoopiwire is fed all-the way into the severing .wl'i'eel';

Fig; 12 .is. a horizontal section'ltakerrapproxi Fig. 13 is-a verticalsection drawn to enlarged; scale; and taken'approximately in the'plane of -11 1 I -Q;

Fig. 14 is-a bottom View o f the-clanipi r'1gwheel, and severing wheel Withythe tape-stuffing wheel btherr m v r;

Fig- 15 is a section talgen approximately in the pl ne.b tl -1 ffie:13::am .v .1

F a; 6 e n. milartcF e a -sh n h t 0n... the. ar h n he endmost-scoop is partially severed from the scoop strip;

e n qth a n a d rel ar i w. y o hz qm ete o i mach e c mprises a table l2 supported on legs-M and carrying a machinehead generally designated l6. This isdriverr bya suitable n o tory l8 through pulley 2il-,-bel t 22 and pulley-2 4. Scoop wire 26 and-tape 28 are fed into the machinegan'd the finished stringer- 30 1's, discharged through an appropriate trough 32- into a suitable-basket or -3e The I particulan forin of; scoop {wire here em' ployed -is shown in Figs-4 and 5. lhe wire is preliminarily-coined, as; for example, by means 1 of ll' q m aa a i -cl c hes United. StatesWii'itriss-liatentllo. 2,2 0 '1 ,'O6B issued Mafy M 14,11 940, and Ulrich;PatentNo.-2,3:I0,380 issued February 27,1945=.'- ,Irrthe; particular formof scoop .wire hereshownfithere are a series; of pro-' jections"35-along-one-face and a "series of "re-j cesses 38-along the opposite 'face.; 1' Ihe side edges; are serrated -as-- indicated at 49: These;serrations correspond to the outer ends'of spread jaws," it being understoodth'atthe-present scoop wire' i is scrapless,-'-for-the head of each-embryojscoop j is received *within" the spread *jaws of the next preceding --embryo scoop: In the present; case theserrationsfdfl are -either ,coine'dwithout' a fimor the fin is preliminarily'rernovedina separate -operation;for the scoop machine is not pro vided'with-fin-removing means.---

In the prior patents above referred-toythewire is rolled head first-so that 'it mayilaterbe-fed 'tothe 'scoopmiachinej aw? first; but in'l'the .pres-: entcase the =wire**is preferab1y= rolledjaw-first so that-it may be fedto the-scoop machine head filSbr This-is of *minor 'ilnportance, foreven-if i it -were-- rolled headfirst',='it'- could --berewour'id from one reeito another; and then could befed' to---the-scoop machinehead first. If the fin'is removed-- ina whollyseparate operation; that would change thedirectiQn-10f scoops: In Figs? 4 and-5-the' wire is fed to 'the scoop' machine-' in the directionindicatedby the arr ow;' andthew endmost scoop is severed from the wire on a line such as the broken line 42 shown in Fig. 4, this line defining the outline of the head of one scoop, and the space between the jaws of another scoop- Considering the machine in greater detail, and referring to Figs. 2, 3, 6 and .14, the apparatus comprises continuously rotatable feed cams 44 and 46 (Fig. 6) engaging the serrated'edges of the strip 28, and a continuously rotating severing wheel 58 (Figs. 2, 3 and 14) cooperating with a stationary die 112 (Fig. 3), and slotted to receive and sever the endmost scoop from the strip and to transfer the same to the tape 28. The machine further comprises a continuously rotating stuffing wheel 52 (Figs. 2 and 3) having a circumferentially slit periphery for receiving and supporting the tape between the spread jaws of the scoops.

The machine further comprises continuously rotating clamping wheels 54 and 55 (Figs. 2 and 14) having clamping teeth which mesh with the severing wheel 56 and the stufing wheel '32, and which engage the spread jaws of the severed scoops to clamp the same against the tape. The severing wheel 56 spaces the scoops at the proper pitch along the tape. There are also continuously rotating auxiliary feed wheels 53 (Fig. 3) engaging the finished stringer to keep the same under tension and to move it at the speed permitted by those scoops already clamped on the tape and still in engagement with the severing wheel. In addition, the machine comprises appropriate gearing interconnecting all of said continuously rotating means in order to rotate the same in properly timed relation.

The wire feed means may be described with particular reference to Figs. 3, 6 and '7 of the drawings. Each feed cam comprises helical portions which advance the scoop wire 26, and other portions which cause the wire to dwell. These are circumferential or annular, but may for simplicity be called straight portions, in contrast with the helical portions. The feed cam rotates continuously, but the wire is moved intermittently. To secure an improved and positive engagement between the feed cams and the wire, the cams are preferably made multiple-track, as is clearly shown in the drawing, so that in addition to having cams on both sides of the Wire, each cam engages a plurality of serrations. It will also be noted that there are a plurality of helical and straight cam sections around the periphery of the cam, so that each revolution of the cam causes a plurality of intermittent feed movements of the wire. While this is not essential, it is desirable in order to reduce the otherwise enormous gear reduction ratio between the slow speed severing wheel on the one hand, and the high speed feed cams on the other. In the specific example here shown, the severing wheel has eighty slots, and the cams have four helical portions in one revolution, so that the reduction ratio is one to twenty. I

The pulley (previously referred to in connection with Fig. 1 as driven through a belt 22 by a driving motor 18) turns a shaft 62 (Fig. 3), the other end of which carries a sprocket wheel 65 geared by means of a chain 66 and sprocket wheel 88 (Fig. 7) to a gear 18 which meshes with a gear '52. Gear it drives a gear 75, and gear 12 drives a gear 74, these gears respectively driving the feed cams t4 and M5 previously referred to, The purpose of the present gear arrangement is to provide a space for the scoop wire 26 between the gears 14 and Hi. It is for this reason that the gears M and '16 do not mesh directly together and instead are indirectly meshed through gears SB and '52 which, being located well beneath the scoop wire 2'6, may be made large enough in diameter to mesh.

The scoop wire passes through an appropriate guide slot which is closed at the top by means of a T-shaped shoe is which is bolted in position, as is best shown in Fig. 7.

It will be evident from inspection of the drawings that the bearings for the gears 12 and M are held in position by means of a bearing cover 86, while the bearings for the gears 70 and 16 are held in position by means of a bearing cover 82. The bearing assembly is secured to the machine table, as by means of bolts 85.

The severing wheel 58 may be described with reference to Figs. 2, and 3 through 13 of the drawings. In Fig. 2 it will be seen that the severing wheel so is secured to a shaft 86 carried in bearings 88 and 93, said shaft being connected by means of a suitable coupling 92 to a slow speed shaft e4 coming out of a gear housing 96 (Figs. 1 and 3). In Fig. 2, it will be noticed that the severing wheel 59 is peripherally grooved, and this groove, in the case here illustrated, conforms to the outline of the head'of the scoop. This is best shown in Figs. 8 and 12.

The periphery of the severing wheel is slotted at the desired spacing or pitch of the scoops along the tape of the finished fastener. For convenience in machining, the innermost end of each slot is made of a separate insert 98 (Figs. 8, 9 and 10), the outer wall 99 of which is machined to conform to the head of a scoop before the insert is secured in place in the severing wheel.

Referring to Fig. 10, the face 100 of the slot which pushes the endmost scoop past the severing die member, has a sharp or square cutting edge, whereas the opposite face is substantially beveled, as indicated at i 02. This facilitates feed of the endmost scoop of the wire into the slot as the severing wheel rotates. The bottom face of the slot is also grooved or channeled, as is best shown at H14 in Fig. 8, to receive the projection of the scoop, the strip being fed to the machine with the projections downward and the recesses or pockets upward. The side edges of the bottom face of the slot are also beveled, as is indicated at 166 in Figs. 10 and 11, the purpose of this bing to facilitatemeshing of the clamping wheels 54 and 55 with the slotted periphery of the severing wheel, as is best shown in Fig. 14. r

The stationary die with Which the severing wheel cooperates, is shown in Figs. 8, 10 and 11. The die 28 is provided with a groove 1 i0, bounded by ways H2. It has a projecting portion H4 which corresponds to the outline of the head of the scoop, and which supports the scoop wire when the endmost scoop is being severed. The manner in which this is done will be clear from a comparison of Figs. 10, 11 and 16, showing successive stages in the severing operation. In Fig. 10, the wire has not yet entered the slot H6 of the severing wheel, but is about to do so. In Fig. 11 one of the intermittent feed movements of the wire has taken place and it has been pushed home in the slot of the severing wheel. At this time the endmost scoop is received in the slot and the wire including the next to the endmost scoop, rests on the stationary die Hi8- Continued rotation of the wheel shears the. scoop downward, as is best shown in Fig. 16.

Cooperating with the die ifisand in some senses forming a continuation of it, is an arcuate guide H8 (Fig. 3) which fits bjweenth jaws of the sedate and holdsthei T'sasiu i injtlieiwheel 50 funtil the scoops ieaehtheta e; This action is"best 'show'n "111mg. "91311 which it will be seen" that'gilid l lt enters betweenithe spij ad aws" of "the scoo I faridsrveytd tom the, latter" against the insert 'SBTTact niZ asthef base ofith'e slot receiving the scofop'i' 4 N W A The tape 'stufiing'wheel may be desoribed W' reference to Figs."2, 13am l5fofj'theg'dra a Fig. 2 shows how the stuifing wheelffiz 1s cu clirnferentiall'y slitabout ilispefipfiefyfito re l Ye the "web" of "the tapeL 'FigQ 13 shows how the: periphefy or the Stllffi'ng Wheeliis el slotted at 122 to clafthjh the scoops. These "nets T22 :pr therebetwen, Whih tt1i bear metesdee' ed enejtffthe ta or H o it shuns within "theiiaw fspafcefof the scodsf Referring no'wto Fig. rams teeth bearing 'aga' the" tape bead." 26 are'sh wn "atTflIVvh iI the slots aremdieat d at [22..fItfsh01i1d be' ob s iiilefdi that theSIlrfacsI ZIai"so shapedfand located" as to ratheraccuratelyfit the "endsfbr' the'jaws" of the scoop as the J'awsare closed by'the clamp; mg wheels st and 56$ This helps maintain t H scoop with itssx sparauei'to the 'planefof the V tape, or in the 'pr'esentcase',' vertioal,' If

The featurefis importantfbecause, it due to faulty coining or severing of the scoop wireone 30 jaw ofthe scoop is thicker than'the other; there is Ordinarily a tendency for the'fthinlj aw to; close first. Then, as the thicker jaw is'fclosed, the scoop is biased on" the'ft'ape. Moreover; the finished scoop'has one 'jaweffect'ively longer than thebther, which'is' or disadvantage forf be'st co operation with the slider 'oftin-i fa'stener. With p' the support surfaces I221 shown -inf Figfli the v scoop is supported at the top by thefseveringf wheel, at the bottom bythe stufl'lng wheeljand'lio at the sides by theblar'npingfwheels. "This so confines the scoop that it"is properly locatedjon the tape'when theja'ws are 'clo's'ed,"regardlesslot anyslight difierence in residents strengtl'rof; the't'wd jaws of the scoop. m The clamping wheel's'are best shown in li'igs 2 and 14 of the drawings. In 1411 11 will be i seen that the wheels'have teeth I28. so designed as to reach into the slots'Qofthei severing lwheel in order to' closethe j'aws'ofthe scoop Thusthe first scoops I30" in Fig. 14 are still l'openg the scoops I32 are being; cl'ofs'edj while the outgoing I scoops l34'have' alreadyib'een closed on 'the tape. It will be noted thatthe teeth l28 are sloped on one side to better 'mesh with the teeth of the severing wheel, and that the latter are pro; vided with cooperating'bevls' l06 :Th'e'se arethe I side bevels' [I16"previously referred to in. connectionwith'Figs; l0alnd lll Referring to Fig. 2, the clamping wheelsjd f and 56 are carried on shafts I36 and I38 respectively. These are provided with bevel pinions MB meshing with bevel gears 142 secured directly. to the severing wheel'50L Thus slow speed shaft 9! drives the severing wheel 50, and, through the bevel gears, drives the clamping wheelsil and 56. It will be understoodthat these wheelsi'are driven in tooth for "tooth synchronismj; 1 and that the difference in diameter between the bevel gears I62 and the bevel pin'ions' l4fl,;simply'corresponds" to the difierence in diameter between the severing wheel 56 and the'clamping wheel '541l ahd'56.

In Fig. 2 it will benoted that theflshaft I 36 is extended downwardly and carries anotherbevel pinion I M meshing withabevel gear [41 sec "(1'75 6-;- to. the tape stumng wheel 52.. Here againit will be junderstood' that "the reductionfiatio between the bevel pinion I44 gsnu ,bevelfgean T45 .corresponds to the difie'renbe in diameter betweenthe camping whens and the tape stufiing when" In" the particular case here'shown, the tape stuffing wheel is of the samediamete'r as the severing wheel 5!], hence. the step-down"ratio of the lower Y bevel gears is the same asthe step-up ratio of the upper bevel gears;

As so far described, the tape will be fed through v the machine because of the actiono'f the sever ing Wheel on the scoops alreadyclamped onto, the tape. Howevenit' is' preferred to supplement the tape feed. For this purpose, additional tape" feed wheels 58 (Fig. 3) are provided. "I'hese'bear against the sides of the tape, there..beingltwqv wheels, only one of which is shownin Fig. 3. "The upper ends of the wheelsfmaybe toothed to mesh with the scoops on the "tape; or may be simply reduced in diameter to clear the scoops. The feed of wheels 58 is preferably simply frictional, and these wheels serve merely to keep the tape under" tension, the precise speed of movement of the tape being controlled by retention of the clamped scoops in the slots of the tape severing wheel. The drive for Wheels 58 is not shown. Gearing may be used for a positive drive, or belts for a frictional drive.

If desired, the rolls 58. maybe used also asfinishing rolls, to help. finish thestringer by rolling the elements to proper width and smoothness.

The reduction gearing in the gear box 96 may be of any conventional character suited to obtaining a reduction ratio such as to advance the scoop wire one scoop for each slot in thesevering wheel.

It is believed that the construction and operation, as well as the advantages of the present improved scoop machine, .will be apparent from the foregoing detailed description. The machine employs only rotary motions, and all of the rotating parts turn at uniform speed. Thus the machine is capable of very high speed operation ina relatively smooth and quiet manner, because of the absence of reciprocating parts and resulting in-. ertia effects.

It' will be understood that while the machine has been described as operating on a preferred form of scoop wire for making a particular kind of scoop, it may be used with a scoopwire producing a different kind of scoop. I t;wil l -also be unde'rs'tood that some features of the invention may be used without others. jor example therotary, severing wheel and "stulilngiyvheel may be em ployed with' reciprocating clamping, blades al I though without the, rai advantage of the present inventionyin which all parts are rotary.

Itwill therefore be apparent that .while the in: ventionhas beendescribed in a preierred forms many changes" mayfbejinade without departing y from. the spirit .ofthe. invention as sought to be defined in the ronewingeieims; In the .claims,

the term scoop isused'fsynonymously with the term "fastenerelementfieven though many l z inds of fastener elements :"erefknewnwhich. are not shapedlikeascoo'p.

What is claimedis:

1. In apparatus for manufacturing. slidejas- H teners, means for severing scoops tram a teep strip," and I'fo'r transfe ring said i's everiedfsc'oops l I edgeof a tap 51mm spacing aid scoops ratiiesired pitch along jsaidlf tape; saidmeans com rising a setefr i 'gfwiy 1 the pitch and a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the scoop, said severing wheel having a section of matin outline, and the slots being dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, and tape support means for holding the beaded edge of the tape at the periphery of the wheel between the jaws of the severed scoops.

2. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having the head of each embryo scoop nested between the jaws of the next preceding embryo scoop, and for transferring said severed scoops directly to the beaded edge of a tape, said means comprising a severing wheel the periphery of which is radially slotted and a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of the scoop, said severing wheel being peripherally grooved to mating outline, said radial slots being dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, and tape support means for holding the beaded edge of the tape in the grooved periphery of the wheel between the jaws of the severed scoops,

3. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having the head of each embryo scoop nested between the spread jaws of the next preceding embryo scoop, and for transferring said severed scoops directly to the beaded edge of a tape, and for spacing said scoops at desired pitch along said tape, said means comprising a severing wheel the periphery of which is slotted at the desired pitch and a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of the scoop, said severing wheel being peripherally grooved to mating outline, said slots being dimensioned and appropriately shaped to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, and tape support means for holdin the beaded edge of the tape in the grooved periphery of the wheel between the jaws of the severed scoops.

4. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip, said means comprising a severing wheel the periphery of which is slotted and a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the scoop, the periphery of said severing wheel having a mating section, and the slots being dimensioned to receive the endmost scoop of'the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, the face of the slot which pushes the endmost scoop past the stationary die member having a sharp or square cutting edge, and the opposite face being substantially beveled.

5. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having the head of each embryo scoop nested between the spread jaws of the next preceding embryo scoop, said means comprising a and a stationary die member disposed at the pe-v riphery of said severing wheel, said die member being shaped to conform to the outline of the head of a scoop, said severing wheel being peripherally grooved to mating outline, and the slots being dimensioned and appropriately shaped to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, the inner end of each slot being made of a separate insert the outer wall of which is machined to conform to the head of a scoop.

6. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having the head of each embryo scoop nested between the jaws of the next preceding embryo scoop, said means comprising a severing wheel the periphery of which is radially slotted and a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of a scoop, said severing wheel being peripherally grooved to mating outline, and the radial slots being dimensioned and appropriately shaped to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, the face of the slot which pushes the endmost scoop past the stationary die member having a sharp or square cutting edge, the opposite face being beveled, the inner end of each slot being made of a separate insert the outer wall of which is machined to conform to the head of the scoop.

7. In apparatus for manufacturing slide fasteners, means for assembling scoops on a tape, said means including a tape stuffing wheel having a circumferentially slit periphery for receiving the web of the tape, the periphery of said wheel being transversely slotted to clear the jaws of scoops and providing teeth between said jaws for bearing against the beaded edge of the tape and holding it snugly within the jaw space of the scoops, a scoop transfer and spacing wheel the periphery of which is radially slotted to receive and transfer scoops to the tape at proper pitch or spacing along the tape, and additional means located adjacent the tape stuffing wheel and the scoop transfer and spacing wheel to clamp the jaws of the scoops against the beaded edge of the tape while the scoops are supported between the transfer wheel and the tape.

8. In apparatus for manufacturing slide fasteners, means for assembling scoops on a tape, said means including a tape stufiing wheel having a circumferentially slit periphery for receiving the web of the tape, the periphery of said wheel being transversely slotted to clear the jaws of scoops and providing teeth between said jaws for bearing against the beaded edge of the tape and holding it snugly within the jaw space of the scoops, the periphery of said stuffing wheel between said teeth being so shaped and dimensioned as to support the ends of the jaws as the jaws are closed, thereby helping maintain the axis of the scoop parallel to the plane of the tape, a scoop transfer and spacing wheel the periphery of which is slotted to receive and transfer scoops to the tape at proper pitch or spacing along the tape, and additional means located adjacent the tape stuffing wheel and the scoop transfer and spacing wheel to clamp the jaws of the scoops against the beaded edge of the tape while the scoops are supported between the transfer wheel and the stufiing wheel.

9. In apparatus for maunfacturing slide fasteners, means for applying scoops to a tape comprising a tape stuffing wheel having a cir- 79 cumferentially slitperiphery for receiving the webof the tape, the periphery of said wheel being transversely slotted :toclear the'j aws of scoops and providing teeth between said jaws for bearfor clamping thejaws of the scoops against. the

beaded edge of the tape, said clamping, wheels being perpiherally toothed to mesh in the radial slots of the transferwheeL.

'10. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip and for transferring said severed scoops directly to the beaded edge of a tape, said means comprising a severing. wheel the periphery of which is slotted, a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the-head of the scoop, said severing wheel being peripherally grooved to mating outline, and the slots being dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the-endmost scoop is severed from the strip, and a tape stuffing wheel for holding the beaded edge of the tape in the grooved periphery of the wheel between the jaws of the severed scoops, said tape stuffing wheel having a circumferentially slit periphery for receiving the web of the tape, the periphery of said Wheel being shaped to clear the jaws of scoops and to bear against the beaded edge of the tape and to hold it within the jaw space of the scoops.

11. In apparatus for manufacturing slide fasteners, means' for. severing scoops from a-scoop strip and for transferring said severed scoops directly to the beaded edge of a tape and for spac ing said scoops at desired fpitch' along said tape, said means comprisinga severing wheel the periphery-of which is slottedat the. desired pitch, astationary die member disposed at the peripheryof said severing wheeL'said die member being shaped to conformto the outline of the head of the scoop, saidseveringwheel being periphorally-grooved to mating. outline, and the slots being dimensioned to receive the endmost scoop of the strip, whereby on rotationof said severing wheel the endmost scoop is severed from the wire, and a tape stufiing wheel forgholding the beaded edge of thetapein the grooved. periphery oi-the wheel between the jaws of the severedscoops, said tape-stuffing. wheel having -a circumferentially slit periphery for receiving the web of the tape, the periphery .of said wheel being transverselyslotted to .clear the jaws of scoops and providing teeth between said jaws for bearing against the beaded ed e of; the. tapeand holding itw'ithin the jawspaceof the scoops.

12. In apparatusffor manufacturing slide fasteners, means forsevering'scoops from. a scoop striphaving the-head of each embryo scoop nested between the spread jaws, ofv the next preceding embryo scoop, andfor transferring said severed scoops directly to thebeaded edge of a tape and for spacing said scoops at desired pitch or spacing along said tape, saidmeans comprising a severing wheel theperiphery of which is radially slotted at the desired pitch, a stationary die member disposedat; the periphery of.said severing wheel, saiddie member being shaped .to conform to the outline of the head of the scoop, said severingwheel being peripherally grooved to mat.-

i ut n ndiherad-ial' lo s beinadime sioned and appropriately shaped to receive-the endmost scoop of the strip whereby on; rotation of said severing wheel-theendmostscoopis seyered from the ;s tr ip,--and a tape stuffing wheel for holding the beaded-edgegof-the;tape-in the grooved periphery of -the =wheel between thej-ejaws of the severed-scoops, said tape stufiingwheel havinga circumferentially slit: periphery fosreceiving the W Qf.t .-ta e,; h pe phery .Qf. Said Lb ra vers slo t dto-elear t e-jaws o coo nd prov ding te th b twe n djaw -i 'bearing as i sti w ade .ed eo i e a h l s-it hin e ieurspa e Qfi h w op l t p ri hery. i 1 whe v eiw nh i teeth i gs ha-neplzand dimens o e aszto p t hez nds ...-:th.ep coop;=-iew ,ther h lpingmaintain theaxis of the scoop parallel to the p e.10fthetap na per t s o testamentas- HSs 3 93 .iQ sever 5.9 91 .fmm; 33 1 3 991 ip. a d for ransfer n s d se ered. m on h ect totheheaded e s f tapegandz l m ing said s opszat. de ired halons the pe, sa d eanseomp i g a:.. e he;wheelth pe iphery, ofwh chis s tt d atd h esiredipitch, a s i a ydie. membe .idisn tithepe phery of s id SEWfilEnWhCQh ai :di m er be n ap d t conf rmr to e:iout ne 50f .z h head-10f t sco p, saidsey ine yrh elloe n per ph rally rooved to ma in 'ou linazand;the.:.;slots: ein d m n ned t receive the endmost scoop ofth strip, whereby..onrotationpf said-severingwheel th ndm t-sc op isseveredflmm.thestrin. tape support means jrfor;,.=holdinga;the beadedzed 0f the tap inth grooved. p r phery; oi theW- eel'between the jaws of the severed scoopsriandjclamping wheels on opposite sides of the tape and'the s g. 1 wheel .ior; clamp n the- Jews: -.jof the co ps against thebe ededge of:; he tape.

v 14. In ,apparatus; ,foramanufaqturin lslid fastape, said means .comprisingaassevering wheel" the periphery of ,whichis slotted at the. desired pitch, a stationarydie member disposed at, thefperiphcry of said severing-wheel. said die. member being shaped to conform to. .theoutline of the head "of the. scoop, said severingwheel being peripherally groovedto mating .outline,.and the-slots: being dimensioned toreceive. the endmost .scoop ofthe strip, whereby. on .rotationofsaid severing, wheel the endmostscoop is severed..-from the strip, tape support means for .-.holding-:..thea; beaded edge of the tape in.thegroovedsperiphery of thewheel between the ..jaws .of..the1 :severed scoops,- aand clamping, .wheels on .Io'pposite ...sides; of the tape and "the... severing wheel Iforcclamping the .jaws of the. scoops against theibeaded :edge .ofthe tape, said clamping wheels bein'g' peripherally. toothed to mesh in the slots of the severing wheel-.1 s. 15. Inapparatus.for-manufacturing slide fasteners, .means for severing scoops'.:from..a. scoop strip. having the .head. of. eachtembryoascoop nested between :the spreadjaws of the. next preceding embryo scoop, andfor transferring said severed scoops directly: to the beaded .edge of a tape and, for ;c1amping. said scoops. :at'. desired pitch or spacingzalongvisaid tape, :;s'aid-..means mpri ing-a ;.severing1.wheel. the peri hery :o'f which.v is radiallyaslottedpat.;.the .;desired;pitch, .a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of the scoop, said severing wheel being peripherally grooved to mating outline, and the radial slots being dimensioned and appropriately shaped to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, tape support means for holding the beaded edge of the tape in the grooved periphery of the wheel between the jaws of the severed scoops, and clamping wheels on opposite sides of the tape and severing wheel for clamping the jaws of the scoops against the beaded edge of the tape, said clamping wheels being peripherally toothed to mesh in the radial slots of the severing wheel, said teeth and slots being so beveled as to facilitate the desired meshing action as the three wheels rotate.

16. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having serrated side edges, said means comprising a severing wheel the periphery of which is slotted, and a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the scoop, said severing wheel being peripherally grooved to mating outline, and the slots being dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, and continuously rotating means for intermittently feeding the scoop wire to said severing wheel, said feed means comprising cams engaging opposite edges of the wire, said cams having helical portions for advancing the wire and straight portions for causing the wire to dwell, and appropriate gearing for rotating the cams in properly timed relation to the severing wheel.

17. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having serrated side edges, said means comprising a severing wheel the periphery of which is slotted, and a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of that scoop, said severing wheel being peripherally grooved to mating outline, and the slots being dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, and continuously rotating means for intermittently feeding the scoop wire to said severing wheel, said feed means comprising cams engaging opposite edges of the wire, each of said feed cams having helical portions for advancing the wire and straight portions for causing the wire to dwell, there being a plurality of helical and straight portions around the periphery of the cam so that each revolution of the cam causes a plurality of intermittent feed movements of the wire, and appropriate gearing for rotating the cams in properly timed relation to the severing wheel.

18. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having the head of each embryo scoop nested between the spread jaws of the next preceding embryo scoop, and having serrated side edges corresponding to the ends of the spread jaws, said means comprising a severing wheel the periphery of which is slotted, and a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of the scoop, said sever- 12 ing wheel being peripherally grooved to mating outline, and the slots being dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, and continuously rotating means for intermittently feeding the scoop wire to said severing wheel, said feedmeans comprising cams engaging opposite edgesof the wire, said feed cams having helical por-' tions for advancing the wire and straight per-- tions for causing the wire to dwell, there being a plurality of helical and straight portions around the periphery of the cam so that each revolution of the cam causes a plurality of intermittent feed movements of the wire, and appropriate gearing for rotating the cams in properly timed relation to the severing wheel.

19. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having serrated side edges and for transferring the severed scoops directly to the beaded edge of a tape, and for spacing said scoops at desired pitch along said tape, said means comprising a severing wheel the periphery of which is slotted at the desired pitch, a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of the scoop, said severing wheel being peripherally grooved tomating outline, and the slots being dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, and tape support means for holding the beaded edge of; the tape in the grooved periphery of the wheel between the jaws of the severed scoops, said tape support means including a tape stufiing wheel having a circumferentially slit periphery for receiving the web of the tape, the periphery of said wheel being transversely slotted to clear the jaws of scoops and providing teeth between said jaws for bearing against the beaded edge of the tape and holding it within the jaw space of the scoops, and a continuously rotating feed cam for intermittently feeding the scoop wire to said severing wheel, said feed means comprising feed cams engaging opposite edges of the wire, said feed cams having helical portions for advancing the wire and straight portions for causing the wire to dwell, and appropriate gearing for rotating the cams in properly timed relation to the severing wheel.

20. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having the head of each embryo scoop nested between the spread jaws of the next preceding embryo scoop, and having serrated side edges corresponding to the ends of the spread jaws, and for transferring said severed scoops directly to the beaded edge of a tape and for spacing said scoops at desired pitch along said tape, said means comprising a severing wheel the periphery of which is radially slotted at the desired pitch, a stationary die member disposed at the periphery of said severing wheel, said. die member being shaped to conform to the outline of the head of the scoop, said severing wheel being peripherally grooved to mating outline, and the radial slots being dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, and tape support means for holding the beaded edge of the tape in-the grooved periphery of the wheel between the jaws 75 of the severed scoops, said tape support means including a tape stufiing wheel having .a circumferentially slit'periphery for receiving the-web of the tape, the periphery of said wheellbeing transversely slotted to clear the jaws of scoops and providing teeth betweensaid jaws forbearsaid feed means comprising feed cams-engaging opposite edges .of the wire,saidffeedfca ns' hav- V ing ,-helical portions foradvancingfthe lwire and straight portions for causing the wire to dwell, there being ea -plurality,of helical :and straight portionsaround the periphery of the camrsogthat' each revolution of the camcauses ,a pluralityof intermittent-feed-movements of the wire,and appropriate gearing for rotating the cams in properly timed relation to the severing wheel.

- 21. Inapparatus for manufacturing slide fasteners, means for severing scoops ,from a scoop strip having serrated side edges, and for transierring saidsevered scoops directly to the beaded edge of a tape, and for spacing said scoops at desired pitch along said tape, said means comprising'a severing wheel the periphery of which isslotted at the desired pitch, a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of the scoop, said severing wheel being peripherally grooved to ,mating outline, and the slots being dimensioned 'toreceive the endmost scoop of'the strip, whereby on rotationof said severin wheel the endmost scoop is severed from the "strip, tape support means for holding the beaded edge of the tape in the rgrooved periphery. of the wheel .between the jaws of the severed scoops, clamping wheels on opposite sides of the vtapeaand the severing wheel'for clamping thejaws of the scoopsfagainst the beaded edge of the tape, said clamping wheels being peripherally toothed to mesh in the radial slots of the severing wheel, a continuously rotating feed cam for intermittently feeding the scoop wire to said severing wheel, said feed cam having a helical portion for advancing the wire and a straight portion for causing the wire to dwell, and appropriate gearing for rotating the cam and severing wheel and clamping wheels in properly timed relation.

22. In apparatus for manufacturing slide fasteners, means for severing scoops from a scoop strip having the head of each embryo scoop nested between the spread jaws of the next preceding embryo scoop, and having serrated side edges corresponding to the ends of the spread jaws, and for transferring the severed scoops directly to the beaded edge of a tape and for clamping said scoops at desired pitch along said tape, said means comprising a severing wheel the periphery of which is slotted at the desired pitch, a stationary die member disposed at the periphery of said severing wheel, said die member being shaped to conform to the outline of the head of the scoop, said severing wheel being peripherally grooved to mating outline, and the slots bein dimensioned to receive the endmost scoop of the strip, whereby on rotation of said severing wheel the endmost scoop is severed from the strip, tape support means for holding the beaded edge of -transfer --wheel for clamping .the' jaws of the scoops against the beaded edge of the tape, said .--clamping wheels being peripherally-toothed to gm-esh in the'slots of the transfer wheeLsaid teeth and slots being :so beveled as to ifacilitate the desired meshinglaction as the three wheelsrotate,

"a continuously-rotating feed cam for intermittently "feeding the-scoop wireto'. said severing 'wheel, said -f.eed cam having a'helicalportion for advancing the wire and 'a "straight portion for causing the-wire;to:dwell,sand ,appropriate geari ing lforrota-tingzthezcanr and; severing wheel and "clamping-wheels inprioperlyrtimed' relation.

.;:23. 5A1]. apparatusf or manufacturing slide if asteners ffr-o-m1.a-:scoop:strip;having. aserrated edge. said apparatus :comprising ;-a:continuously rotat- 'meansliforsupporting.thetapebetween the spread t ljawsiof these-oops,continuously z rotating' clamping" wheels: having-clampingteethmeshing with the severing wheerandieneagingthe spread;.l'aws to clamp the, same against :the' tape 'andcapprorpriategearing interconnect n all of said .con-

tinuouslyrotating :means to rotate the same. in properly-timed relation, 7

-An-apparatus formanufacturing slide fasteners-from.- ascoop strip having the head of each .ernbryo :scoop nested between the spread "j aws of =thenext;preceding:embryoscoop, and havingserxrated sideedgescorresponding to theends of the spread jaws, said apparatus comprising continu- 1 ously .rQtatable feed camsengaging the serrated d fisof the strip,- git-continuously rotating severhaving a circumferentially slitperiphery for receiving land supporting the tape between the spread jaws of the scoops, continuously rotating clamping wheels having clamping teeth meshing with the severing and stuffing wheels and engaging the spread jaws to clamp the same against the tape, and appropriate gearing interconnecting all of said continuously rotating means to rotate the same in properly timed relation.

25. An apparatus for manufacturing slide fasteners from a scoop strip having the head of each embryo scoop nested between the spread jaws of the next preceding embryo scoop, and having serrated side edges corresponding to the ends of the spread jaws, said apparatus comprising a continuously rotatable feed cam engaging the serrated edge of the strip, a continuously rotating severing wheel cooperating with a stationary die surface and slotted to receive and sever the endmost scoop from the strip and to transfer the same to a tape, a continuously rotating stuifing wheel hav ing a circumferentially slit periphery for receiving and supporting the tape between the spread jaws of the scoops, continuously rotating clamping wheels having clamping teeth meshing with the severing and stufiing wheels and engaging the spread jaws to clamp the same against the tape, additional continuously rotating feed wheels engaging the finished stringer to keep the same under tension, and appropriate gearing interconnecting all of said continuously rotating 15 means to rotate the same in properly timed relation.

26; In apparatus for manufacturing slide fasteners from scoop wire comprising embryo scoops arranged end to end and with a side edge of said wire serrated, said apparatus comprising means for severing individual scoops from the scoop wire, continuously rotating means for intermittently feeding said scoop wire to the severing means, said feed means comprising a feed cam disposed with its axis extending generally parallel to the direction of feed of the scoop wire toward the severing means, said cam having a cam surface for engaging a serration of the wire, means for retaining said wire against said feed cam, said cam surface having a helical portion for advancing the wire and a straight portion for causing the wire to dwell during the severing operation.

27. In apparatus for manufacturing slide fasteners from scoop wire comprising embryo scoops arranged end to end and with the side edges of said wire serrated, said apparatu comprising means for severing individual scoops from the scoop wire, continuously rotating means for intermittently feeding saidscoop wire to the severing means, said feed means comprising feed cams engaging opposite edges of the wire and disposed with their axes extending generally parallel to the direction of feed of the scoop wire toward the severing means, each of said cams having a cam surface for engaging a serration of the wire, said cam surfaces having a helical portion for advancing the wire and a straight portion fo causing the wire to dwell during the severing operation.

28. In apparatus for manufacturing slide fasteners from scoop wire comprising embryo scoops arranged end to end and with a side edge of said wire serrated, said apparatus comprising means for severing individual scoops from the scoop wire, continuously rotating means for intermittently feeding said scoop wire to the severing means, said feed means comprising a feed cam disposed with its axis extending generally parallel to the direction of feed of the scoop wire toward the severing means, said cam having multiple cam surfaces for engaging multiple serrations of the wire, means for retaining said wire against said feed cam, said cam having helical portions for advancing the wire and straight portions for causing the wire to dwell during the severing op eration.

29. In apparatus for manufacturing slide fasteners from scoop wire comprising embryo scoops arranged end to end and with the side edges of said wire serrated, said apparatus comprising means for severing individual scoops from the scoop wire, continuously rotating means for intermittently feeding said scoop wire to the severing means, said feed means comprising feed cams engaging opposite edges of the wire and disposed with their axes extending generally parallel to the direction of feed of the scoop wire toward the severing means, each of said cams having multiple cam surfaces for engaging multiple serrations of the wire, said cam surfaces having helical portions for advancing the wire and straight portions for causing the wire to dwell during the severing operation.

' GEORGE WmTRISS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENT Number Name Date 7 1,890,300 Nagele Dec. 6, 1932 2,070,902 Himan Feb. 16, 1937 2,071,603 Winterhalter Feb. 23, 1937 2,087,461 Wittenberg July 20, 1937 2,094,715 Nagele Oct. 5; 1937 2,261,552 Koppel Nov. 4, 1941 2,275,769 Kiessling Mar. 10, 1942 2,294,763 Reiter Sept. 1, 1942 2,335,034 Winterhalter Nov. 23, 1943 2,396,933 Voity Mar. 19, 1946 FOREIGN PATENTS Number Country Date 143,086 Australia Oct. 10, 1935 246,365 Germany May 25, 1911 308,330 Germany July 7, 1917 

